X0206 3 2014-01-31 0 0001163348 Allied World Assurance Co Holdings, AG AWH 0001598093 Iglesias Louis ALLIED WORLD ASSURANCE CO. HOLDINGS, AG LINDENSTRASSE 8 BAAR/ZUG V8 CH-6340 SWITZERLAND 0 1 0 0 President, AW North America Common Shares 1939 D Restricted Stock Units 0.00 Common Shares 4414 D Consists of 336 common shares and 1,603 Restricted Stock Units that convert into common shares upon the vesting of such units on a one-for-one basis. On February 19, 2013, the reporting person was granted 4,414 Restricted Stock Units for no monetary consideration. The Restricted Stock Units convert into cash equal to the market value of 4,414 common shares (measured at the date of vesting) upon the vesting of such Restricted Stock Units. The Restricted Stock Units vest in four equal installments with the first installment vesting on February 19, 2014. /s/ Louis Iglesias 2014-02-07